Pl sql clob updating
For example I need to update each record at 14th position with some string like "My New text". So this simply means it will replace 11 characers starting from 14th character.I tried to use declare 2 v_lob clob; 3 begin 4 5 for r_lob in (select c 6 from foo 7 for update) 8 loop 9 dbms_lob.write(r_lob.c, 6, 16, 'phrase'); -- ie write at offset 16, 6 bytes 10 end loop; 11 end; 12 / PL/SQL procedure successfully completed.In the case of LONG or LONG RAW the entire value is stored in the table column. If Param Type is pt Input ODAC writes data to server, if Param Type is pt Output it reads data.When you access LOB column, it is the locator which is returned. You can also use dt Blob and dt Memo datatypes with LOB parameters to write ordinary DML statements.A direct insert into the table works for a value up to 32k, but storing it into that variable first gives me the error.Just strange that the insert works, and the variable assignment has some type of limitation when both values are basically 32k, not greater than. COUNT 33 INSERT INTO test1 VALUES v_data_record(x); 34 END; 35 / PL/SQL procedure successfully completed.
ISTEMPORARY(my LOB)); END; / 1 declare 2 my Story CLOB; 3 revised Story CLOB; 4 my Gist VARCHAR2(100); 5 revised Gist VARCHAR2(100); 6 BEGIN 7 -- select a CLOB column into a CLOB variable 8 SELECT Story INTO my Story FROM print_media WHERE product_id=10; 9 -- perform VARCHAR2 operations on a CLOB variable 10 revised Story := UPPER(SUBSTR(my Story, 100, 1)); 11 -- revised Story is a temporary LOB 12 -- Concat a VARCHAR2 at the end of a CLOB 13 revised Story := revised Story
Indent the code, use code tags and align the columns in result. Also always post your Oracle version, with 4 decimals. I can issue a direct insert into that table of a value = 32000K.declare my LOB CLOB; BEGIN SELECT 'ABCDE' INTO my LOB FROM print_media WHERE ad_id = 11001; -- my LOB is a temporary LOB. 13 -- Changes will not be reflected in the database table from this point on.